Date: 11/01/2021 11:37:57
From: Tau.Neutrino
ID: 1678417
Subject: Blackest black

YouTuber Paints Room With Musou Black, The World’s Blackest Paint

interesting video

It would make for a great telescope room.

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Date: 11/01/2021 12:45:51
From: mollwollfumble
ID: 1678454
Subject: re: Blackest black

Tau.Neutrino said:


YouTuber Paints Room With Musou Black, The World’s Blackest Paint

interesting video

It would make for a great telescope room.

Good for the inside of a telescope barrel and telescope secondary mirror support, too.

Not good enough for a single layer space telescope sun shield? Three layers is standard these days.

I wonder how good it is in near IR? Mid-IR?

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Date: 11/01/2021 12:50:20
From: Spiny Norman
ID: 1678458
Subject: re: Blackest black

I want to make a suit covered in that stuff, then go to the local sci-fi/fantasy show we have once a year here. It’d be really freaking to see a large humanoid shape moving around in the crowds. I’d like to have red lights in the eye slits, just to make it look a little more evil. :)
An angled piece of glass that has the red light bounce outwards but you can still see through would work for that.

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Date: 11/01/2021 12:53:25
From: Spiny Norman
ID: 1678462
Subject: re: Blackest black

BTW, Musou Black isn’t the blackest black, that’s another product called Vanta Black. But it’s far more difficult to apply and has to be done by the company that sells it. It’s a bit blacker, but not by a significant degree.

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Date: 11/01/2021 15:00:21
From: Arts
ID: 1678513
Subject: re: Blackest black

Tau.Neutrino said:


YouTuber Paints Room With Musou Black, The World’s Blackest Paint

interesting video

It would make for a great telescope room.

what colour is an orange in that room?

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Date: 11/01/2021 15:05:07
From: Tamb
ID: 1678516
Subject: re: Blackest black

Arts said:


Tau.Neutrino said:

YouTuber Paints Room With Musou Black, The World’s Blackest Paint

interesting video

It would make for a great telescope room.

what colour is an orange in that room?


Orange (but you can’t see it)

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Date: 11/01/2021 15:06:36
From: Michael V
ID: 1678517
Subject: re: Blackest black

Arts said:


Tau.Neutrino said:

YouTuber Paints Room With Musou Black, The World’s Blackest Paint

interesting video

It would make for a great telescope room.

what colour is an orange in that room?

Uh-oh!

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Date: 11/01/2021 15:12:39
From: Cymek
ID: 1678518
Subject: re: Blackest black

Could you get 100% absorption or would it be like absolute zero can never quite get there

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Date: 11/01/2021 15:27:30
From: roughbarked
ID: 1678523
Subject: re: Blackest black

what colour is an opal in the dark?

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Date: 11/01/2021 18:29:12
From: mollwollfumble
ID: 1678640
Subject: re: Blackest black

Cymek said:


Could you get 100% absorption or would it be like absolute zero can never quite get there

I thought I knew the answer to this. But thinking it out now I find I’m not so sure.

All I can be sure of is that if you have 100% absorption then it can’t be 100% for ever. As the material saturates with more and more absorbed energy it becomes less black.

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